# 3. NITRIC OXIDE BOOSTERS
Nitric oxide (NO) is a molecule found throughout the body that's involved in multiple processes. The one that bodybuilders are most interested in is its ability to dilate blood vessels, which allows more blood flow to the muscles for enhanced delivery of oxygen, nutrients, anabolic hormones and water (blood is mostly water). This gives you more energy during your workout, an enhanced muscle pump, and better muscle recovery and growth after the workout.
NO boosters don't provide NO, but rather the amino acid arginine, which is readily converted to NO in the body. Research has found that subjects who were given arginine increased muscle strength and growth and lost body fat.